FFmpeg
Data Structures | Functions | Variables
zerocodec.c File Reference
#include <zlib.h>
#include "avcodec.h"
#include "internal.h"
#include "libavutil/common.h"

Go to the source code of this file.

Data Structures

struct  ZeroCodecContext
 

Functions

static int zerocodec_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 
static av_cold int zerocodec_decode_close (AVCodecContext *avctx)
 
static av_cold int zerocodec_decode_init (AVCodecContext *avctx)
 
static void zerocodec_decode_flush (AVCodecContext *avctx)
 

Variables

const AVCodec ff_zerocodec_decoder
 

Function Documentation

◆ zerocodec_decode_frame()

static int zerocodec_decode_frame ( AVCodecContext avctx,
void *  data,
int got_frame,
AVPacket avpkt 
)
static

ZeroCodec has very simple interframe compression. If a value is the same as the previous frame, set it to 0.

Definition at line 30 of file zerocodec.c.

◆ zerocodec_decode_close()

static av_cold int zerocodec_decode_close ( AVCodecContext avctx)
static

Definition at line 103 of file zerocodec.c.

◆ zerocodec_decode_init()

static av_cold int zerocodec_decode_init ( AVCodecContext avctx)
static

Definition at line 114 of file zerocodec.c.

◆ zerocodec_decode_flush()

static void zerocodec_decode_flush ( AVCodecContext avctx)
static

Definition at line 140 of file zerocodec.c.

Variable Documentation

◆ ff_zerocodec_decoder

const AVCodec ff_zerocodec_decoder
Initial value:
= {
.name = "zerocodec",
.long_name = NULL_IF_CONFIG_SMALL("ZeroCodec Lossless Video"),
.priv_data_size = sizeof(ZeroCodecContext),
.capabilities = AV_CODEC_CAP_DR1,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
}

Definition at line 147 of file zerocodec.c.

FF_CODEC_CAP_INIT_THREADSAFE
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:41
init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:31
zerocodec_decode_close
static av_cold int zerocodec_decode_close(AVCodecContext *avctx)
Definition: zerocodec.c:103
zerocodec_decode_frame
static int zerocodec_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: zerocodec.c:30
zerocodec_decode_flush
static void zerocodec_decode_flush(AVCodecContext *avctx)
Definition: zerocodec.c:140
decode
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:71
zerocodec_decode_init
static av_cold int zerocodec_decode_init(AVCodecContext *avctx)
Definition: zerocodec.c:114
flush
static void flush(AVCodecContext *avctx)
Definition: aacdec_template.c:592
AV_CODEC_ID_ZEROCODEC
@ AV_CODEC_ID_ZEROCODEC
Definition: codec_id.h:210
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
FF_CODEC_CAP_INIT_CLEANUP
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: internal.h:49
ZeroCodecContext
Definition: zerocodec.c:25
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201